The Complete Guide to SIM Cards

A Subscriber Identity Module Card, or SIM Card, provides a way to identify the user of a phone on a mobile phone network. Being able to swap SIM Cards between phones allows mobile phone users to make calls on any phone that contains their SIM Card (when the phone has not been locked to a particular mobile service provider). SIM Cards can also be used to store contacts, which can also be transferred between phones.

This guide provides a number of troubleshooting steps that you can take to solve some common issues that relate to SIM Cards, as well as some common mobile phone tips and tricks.

Deleted texts messages on the Android SIM card are hard to retrieve but there is a possibility. Read on to find out which method this is and discover how to prevent the loss of important text messages...